CAN FD is an extension to the Classic CAN protocol that was developed to meet the needs of modern vehicles wherever-increasing numbers of embedded electronics are transmitting ever-increasing amounts of control and diagnostic data. Because the original CAN specification has a maximum bandwidth limitation of 1 Mbps, data-dense activities like ECU flashing and advanced driver assistance systems (ADAS) ADAS applications were being impeded, forcing automotive manufacturers to add multiple CAN networks into newer vehicles.
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